Poly(vinyl fluoride)
[化] 聚氟乙烯
🗣️ 情景例句
This is the last chance you can get up to 60 percent discount.
这是您可以得到6折的最后机会。
He hears the violin squeaking.
他听到了小提琴发出的声音。
found a brother who was thought to have been killed twenty years before.
巴斯曼如何找到了据信已在20年前死去的兄弟的事。